This week, scientists determine when humans and Neanderthals swapped genes, anthropologists suggest that King Tut’s parents were siblings, and a male bird (apparently) poisons itself to be more attractive to females.

In this week’s sexual health roundup: researchers at the University of Michigan looked at the sexting behavior and psychological health of over 3,000 college students and determined that sexting did not, in fact, lead to heartache; another study of college students found that mixing alcohol and caffeinated energy drinks may increase risky behaviors such as drunk sex and casual sex; and a survey of Google searches since 2006 confirms what birth records have suggested for years — Americans do actually think about sex more in the summer.

A report released by the Guttmacher Institute yesterday shows that while religious affiliation may play some role in decisions regarding sexual behavior, it has little to do with whether women (married and unmarried) use contraception.

I know it’s considered only politically correct to be generous to sexual abstainers, and I am, so long as they’re humble about their choices. But the holier-than-thou abstainers get no sympathy from me.